United Kingdom, April 17 -- Vogue Williams is pregnant.

The 40-year-old model and her husband Spencer Matthews have announced via social media that they're expecting another child together.

Alongside a beach photo of her growing baby bump, Vogue wrote on Instagram: "BABY NUMBER 4 INCOMING. [hearts and celebration emojis] (sic)"

Spencer, 37, has also shared the same photo collection on his own Instagram account. The reality TV star - who first found fame on Made in Chelsea - captioned the snaps on his Instagram Story: "We've got some news."

The loved-up couple - who already have Theodore, seven, Gigi, five, and Otto, three, together - took their pregnancy photos on a beach in St. Barts, with Vogue seen sporting a bikini and a sarong. ...